Melissa Trumpy

Case Information:

Melissa Trumpy was 37 years old when she vanished on October 26, 2021, following a trip from her home in Monticello, Wisconsin, to Shannon, Illinois. A devoted mother of three and a professional caregiver, Melissa was last confirmed to be at the residence of her on-again, off-again boyfriend, Derek Hammer.

The following morning, her silver 2005 Toyota Camry was located abandoned on a rural road in Stephenson County with her purse and functional cellular phone still inside. Consequently, after years of exhaustive searches, the Carroll County Sheriff’s Office and the Illinois Attorney General’s Office have officially reclassified the case as a homicide investigation.

Circumstances of Disappearance:

The events leading to Melissa Trump’s disappearance are inextricably linked to a volatile domestic situation and an upcoming court date where she was expected to testify against Hammer. On the night of October 26, Melissa left her workplace and traveled to the Shannon area, where she was seen at a mutual friend’s home alongside Hammer.

By the early hours of October 27, Hammer reportedly returned to his mother’s residence alone, displaying fresh injuries to his face that he did not explain. Therefore, the discovery of Melissa’s vehicle just fifteen minutes away, positioned as if it had been discarded, led investigators to believe the scene was deliberately staged to mask a violent encounter.

Renewed 2026 Investigation:

In a significant development as of early 2026, the Illinois Attorney General’s Office has assigned a specialized prosecution team to “redo the case from scratch.” Benny Affrunti, the father of two of Melissa’s children, noted that this fresh look involves re-interviewing every original witness and re-examining digital evidence with updated forensic tools.

This shift in strategy indicates that authorities are no longer merely looking for a missing person but are actively building a capital murder case. Consequently, the investigation has expanded its scope to include farmland, wooded areas, and bodies of water near Pearl City and Shannon that were previously overlooked.

Accomplice Theories:

A primary focus of the renewed 2026 probe is the identification of additional individuals who may have assisted in the disposal of evidence or the transport of vehicles. Benny Affrunti and other family members have publicly stated their belief that Hammer did not act alone and that “alleged accomplices” within his social circle need to be thoroughly vetted.

These individuals are suspected of helping move Melissa Trumpy’s Toyota Camry to its recovery site on Bolton Road to create a false trail for search parties. As a result, new search warrants and subpoenas have been executed to track the movement of secondary vehicles, including a tan Toyota Tundra and a white Toyota Avalon, on the night of the disappearance.

The Prosecution Strategy:

The involvement of the Illinois Attorney General’s prosecution team suggests that the state is preparing for a “no-body” homicide trial if Melissa’s remains are not located soon. While this is a difficult legal threshold to meet, the cumulative evidence of domestic abuse, witness intimidation, and the suspicious abandonment of her belongings provides a strong circumstantial foundation.

Efforts to issue murder charges have been ongoing, with investigators working to prove that Melissa’s sudden silence is inconsistent with her character as a mother who was in daily contact with her children. Ultimately, the goal is to secure a conviction that ensures all parties involved in her disappearance are held legally accountable.

Derek Hammer’s History:

Derek Hammer, now 38, remains the primary person of interest and is currently serving a five-year prison sentence in Wisconsin for weapons, drugs, and domestic abuse charges involving Melissa. His history of violence is extensive, including a prior conviction for battery by strangulation in Nevada and reports that he once threatened Melissa with a shotgun in front of her six-year-old son.

Despite his current incarceration, he has not provided any information regarding Melissa location or the events of October 26. Therefore, the investigative team is focused on breaking the silence of his associates who may have witnessed the aftermath of the suspected homicide.

Forensic Identifiers:

Melissa is a Caucasian female, 5’10” tall, with strawberry blonde hair and blue eyes, often recognized for her extensive and artistic tattoo work. Her tattoos include a full sleeve on her right arm and a sleeve running from her hip to her ankle on her left leg, along with several facial piercings on her cheekbones and lip.

At the time of her disappearance, she was wearing a black Michael Kors shirt, a black vest, black leggings, and “shimmery Ugg-style” boots. Significantly, these unique physical markers remain the primary focus for landowners in Stephenson County and Carroll County who are urged to check their property for anything out of

Investigative Reach:

The Carroll County Sheriff’s Office recently released a formal statement reaffirming their commitment to the case, stating that they “will not stop looking” until Melissa Trumpy is found. The department has emphasized that even small, seemingly insignificant details from October 2021 could be the “missing link” needed to authorize a final recovery operation.

Community vigilance remains high, with residents being asked to review any old dashcam or security footage from the Shannon and Pearl City areas. Consequently, the collaboration between local, state, and federal agencies represents the most intensive search effort in the region’s recent history.

Contact Information:

If you have any information regarding the location of Melissa Trumpy or the identities of those involved in her disappearance, please contact the Carroll County Sheriff’s Office at 815-244-9171.

A newly established, dedicated tip hotline has also been launched by the Illinois Attorney General’s Office at 866-498-4122. Your tip could be the key to providing Melissa Trumpy’s three children with the dignity of a proper burial and the justice they have sought for over four years.

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